I pasted a Calc spreadsheet into a Writer document. How do I delete the spreadsheet from the document?

I can’t seem to select the spreadsheet in a way which allows its deletion. “Edit > Sheet > Select” seems to select the sheet, but the Delete option remains greyed out.

The entire sheet is embedded as an object into the Writer document, like an image or other types. Just single click it so it gets the green handles and then delete. Edit->Sheet->Delete affects a sheet of the spreadsheet document and is only enabled if there are more than one sheets.